Rev limiter: Did I hurt the stang?
- Thread starter 2002BLKGT
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FallenPhoenix
New Member
it wasn't a pure race car, it was run in some kind of street legal class. Maybe when the engine torques it pulls against the mounts. I'd kind of like to know if it's true or not too.
StangLou
Active Member
Yeah, Ive hit the rev limiter more than I can remember 
. Its there for a reason, so I dont worry about to much of it.
. Its there for a reason, so I dont worry about to much of it.I've read (by an experienced engine builder, forget which forums) that when the rev limiter kicks in, it pulls ALL the fuel out of the engine, not just leaning it out. He said the reason why an engine can be damaged is not because it runs super lean, there's no fuel in the engine at all for it to run lean on. It's because of the huge shocks/forces of the engine going from producing all of this HP, to producing almost nothing, and back again in only fractions of a second. It sounds like the engine almost tears itself apart.
FallenPhoenix
New Member
well hell wouldn't it just be better to pull the spark or even just close the throttle? That doesn't sound good for the engine at all.
FallenPhoenix said:
Pulling the spark would do the same thing with the "shocking the engine" idea. Plus you would have all this fuel in the cylinder not even combusted, most of it going into the exhaust. I'm sure there's some hippy treehuggers in Washington or the EPA that have laws against that. Then whatever fuel might be left from the un-combusted cycle might make the engine run rich. (Who knows how much would be left behind, I've never heard anyone test something like this.)
Having the computer close the throttle would only be an option on a car with throttle-by-wire. Even then, who knows if that would react fast enough.
forpit2000gt
Founding Member
I have been into the limiter on launch and at the top of gears. It is not good to hold it there but you are probably alright.
Technically, our cars are electronic throttled. When you mash the gas pedal it only allows more air in and a sensor sends the information as to what position the throttle is in to add or reduce the amount of fuel.
Technically, our cars are electronic throttled. When you mash the gas pedal it only allows more air in and a sensor sends the information as to what position the throttle is in to add or reduce the amount of fuel.
FallenPhoenix
New Member
my dad's '03 4runner has the throttle by wire. personally I don't think the pedal feel is very realistic, almost like driving a race car on the computer. There are some good points to it, but like ginoGT said, just one more thing to go wrong.
2k2fourpointsix
New Member
So is it bad to be bouncing off the limiter when doing a burnout at the track in 1st, or doing a brake stand on the street?
forpit2000gt
Founding Member
Mustang92
SN's #1 1%er
A few times revving it past the limiter shouldn't hurt anything. Last week in the rain someone cut me off and my horn didn't work so I revved the motor up so they knew I was pissed and the limiter didn't catch it in time and it cruised up to 7K real quick. Personally I believe with proper maintenance these motors can handle a lot. I now launch my car at 6500 RPM sitting on the rev limiter (I moved it up past the 6050 stock limiter).
Bill
Bill
To hell with it. My engine has 70K miles on it and I have hit my rev limiter too many times to count, when the auto tranny doesn't shift fast enough when I am manually shifting it, or when the tires break loose in first or second gear it tends to jump in rpms too fast. The limiter is there for a reason, use it.
hitting the rev limiter with a diablo chip
I have an automatic 2000 Gt, with a diablo chip installed. When I floor it at the track I always hit the rev limiter. Before I had the chip installed, I never had this problem. If I give it about 3/4ths gas it will shift fine. There is no way that I can floor it, without redlining. The only way to come out of the "red" is to let off the gas. The car will not shift at all. The car runs a 14.0 with the chip turned off, and a 14.6-15.0 with the chip on. The chip is brand new and programmed by rpmoutlet.com. A local performance shop said to try having the transmission fluid changed. Does anyone think that will help? The car has 56k miles on it. Thanks
I have an automatic 2000 Gt, with a diablo chip installed. When I floor it at the track I always hit the rev limiter. Before I had the chip installed, I never had this problem. If I give it about 3/4ths gas it will shift fine. There is no way that I can floor it, without redlining. The only way to come out of the "red" is to let off the gas. The car will not shift at all. The car runs a 14.0 with the chip turned off, and a 14.6-15.0 with the chip on. The chip is brand new and programmed by rpmoutlet.com. A local performance shop said to try having the transmission fluid changed. Does anyone think that will help? The car has 56k miles on it. Thanks
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